Sulfur compounds names

The replacement of the oxygen atom in sulfoxides by nitrogen leads to a new class of chiral sulfur compounds, namely, sulfimides, which recently have attracted considerable attention in connection with the stereochemistry of sulfoxide-sulfimide-sulfoximide conversion reactions and with the steric course of nucleophilic substitution at sulfur. The first examples of chiral sulfimides, 88 and 89, were prepared and resolved into enantiomers by Phillips (127,128) by means of the brucine and cinchonidine salts as early as 1927. In the same way, Kresze and Wustrow (129) were able to separate the enantiomers of other structurally related sulfimides. 

Unlike alcohols, sulfides can be oxidised to the hypervalent sulfur compounds, namely sulfoxides... 

The antioxidant system investigated is a synergistic syst composed of a phenol, namely, tetrakls[methylene 3-(3, 5 -di-t-butyl-4 -hydroxyphenyl)propionate]methane (Irgcmox 1010) and a sulfur compound, namely, dlstearylthiodipropionate (DSTDP), both added at 0.5 phr to the CPE. The dehydrochlorlnation stabilizers consisted of a bisphenol A epoxy resin (DER331) added at 4 phr concentration and PbO added at 5 phr concentration. The effects of these systems on the dehydrochlorlnation rates of peroxide crosslinked CPE and 2-roercaptoimidazoline crosslinked CPE are shown in Figure 2. 

Radicofunctional nomenclature finds some use in naming ethers, sulfides, sulfoxides, sulfones, selenium analogs of the preceding three sulfur compounds, and azides. 

The gas plant products, namely fuel gas, Cfs, 4, and gasoline, contain sulfur compounds that require treatment. Impurities in the gas plant products are acidic in nature. Examples include hydrogen sulfide (HjS), carbon dioxide (COj), mercaptan (R-SH), phenol (ArOH), and naphthenic acids (R-COOH). Carbonyl and elemental sulfur may also be present in the above streams. These compounds are acidic. 

Divalent sulfur compounds are achiral, but trivalent sulfur compounds called sulfonium stilts (R3S+) can be chiral. Like phosphines, sulfonium salts undergo relatively slow inversion, so chiral sulfonium salts are configurationally stable and can be isolated. The best known example is the coenzyme 5-adenosylmethionine, the so-called biological methyl donor, which is involved in many metabolic pathways as a source of CH3 groups. (The S" in the name S-adenosylmethionine stands for sulfur and means that the adeno-syl group is attached to the sulfur atom of methionine.) The molecule has S stereochemistry at sulfur ana is configurationally stable for several days at room temperature. Jts R enantiomer is also known but has no biological activity. 

The sulfur-rich oxides S 0 and S 02 belong to the group of so-called lower oxides of sulfur named after the low oxidation state of the sulfur atom(s) compared to the best known oxide SO2 in which the sulfur is in the oxidation state +4. Sulfur monoxide SO is also a member of this class but is not subject of this review. The blue-green material of composition S2O3 described in the older literature has long been shown to be a mixture of salts with the cations S4 and Ss and polysulfate anions rather than a sulfur oxide [1,2]. Reliable reviews on the complex chemistry of the lower sulfur oxides have been published before [1, 3-6]. The present review deals with those sulfur oxides which contain at least one sulfur-sulfur bond and not more than two oxygen atoms. These species are important intermediates in a number of redox reactions of elemental sulfur and other sulfur compounds. 

P 23] The nitration of two standard aromatic compounds, namely benzene and toluene, was performed utilizing nitric acid/sulfuric acid mixtures and the pure... 

The data reported identifies sulfur substrates tested for growth as sole sulfur source for the various strains. The strains may metabolize other sulfur compounds (not listed). A complete name of listed strains in Table 3 comprises Rhodococcus sp. SY1 Rhodococ-cus sp. H-2 Rhodococcus sp. D-l Rhodococcus ECRD-1 Gordona CYKS1 Nocar-dia sp. CYKS2 Paenibacillus All-2 Mycobacterium sp. WU-F1 Mycobacterium sp. WU-0103 Mycobacterium phlei sp. GTIS10 and Agrobacterium MC501. 

These radical polymerizations may simply be considered as an insertion of monomer molecules into the R-R bond of the initiator leading to the polymer with two initiator fragments. Thus, the end groups of the polymer are controlled by the initiator used. Otsu proposed the name iniferter (im tiator-trans/er agent-terminator) for the initiators with such functions [64]. Many radical initiators, such as peroxides, azo compounds, tetraphenylethane derivatives, and organic sulfur compounds, may be expected to serve as an iniferter, if monomers and polymerization conditions are selected. Some peroxides show relatively high... 

TRADE NAME AND SYNONYMS T Sulfur Mustard (Vesicant) CHEMICAL FAMILY Chlorinated Sulfur Compound FORMULA/CHEMICAL STRUCTURE C8H16C120S2... 

Tetracoordinate sulfur compounds containing a lone pair of electrons at sulfur possess a more or less distorted trigonal-bipyramidal structure, in common with the vast majority of other pentacoordinated molecules of the main group elements (189,191,199). A common name, sulfurane, is generally accepted for this type of compound. In principle, sulfuranes are chiral. However, both the number of optically active isomers and their optical stability depend on the nature of substituents bonded to the central sulfur atom, the apicophilicity of the substituents, and the energy required for permutational isomerization processes. In this context it is interesting to note that acyclic sulfuranes with four different ligands should exist in 20 isomeric forms. 

While there was apparently no olefin corresponding to the carbonium ion XXXII present in the dimer formed in the presence of 80% sulfuric acid, it has been reported that such a compound, namely, 2,2,3,6,6-pentamethyl-3-heptene, is the principal product when 84% acid is used (Whitmore, 18). 

The Greek name theion provides the root thi used in names of sulfur compounds. 

In 1866 Friedrich Wohler discovered a ruthenium mineral. When he analyzed the shining black grains of what seemed to be an unusual platinum mineral which Herr Waitz of Cassel had brought back from Borneo, he found it to be a sulfide of ruthenium and osmium. Wohler stated that this mineral, which he named laurite, presented the first example of the natural occurrence of sulfur compounds of the platinum metals (129). 

Compound Name Barium Peroxide Bismuth Oxychloride Zirconium Oxychloride Sulfuric Acid Benzene Hexachloride Oil Spindle Sucrose... 

Compound Name Ferrous Fluoroborate Ferrous Chloride Ferrous Chloride Ferrous Fluoroborate Ferrous Oxalate Ferrous Oxalate Ferrous Sulfate Ferrous Oxalate Sulfuric Acid Sodium Nitrite Oil = Fish... 

Thiophosphoric Acid Derivatives. A fortunate combination of characteristics occurs in the phosphoric acid derivatives upon substitution of a sulfur atom for one of the oxygens of the parent compound Namely, the toxicity of the derivatives to higher forms of life is substantially diminished. while at the same rime, (he acaricidal and insecticidal powers, with... 

Sulfur compounds are named similarly to oxygen compounds. 

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